import requests
import sys
import time
import os
import psycopg2
from psycopg2.extras import execute_values

JENKINS_URL = "https://jenkins.lmru.tech"
AUTH_USER = "lm-sa-devsecops"
AUTH_TOKEN = "11b0f9ff6c986b18f0c7fa6e8ae769b66c"

NVD_API_URL = "https://services.nvd.nist.gov/rest/json/cves/2.0"
NVD_API_KEY = "aa054ea4-4a99-4f16-b5ed-1f77b5193d80"

DB_HOST = "rc1d-f1mdariunacszmi6.mdb.yandexcloud.net"
DB_PORT = 6432
DB_NAME = "securitydebt"
DB_USER = "cicd-monitoring"
DB_PASSWORD = "prelude-uT9/HER"

def get_jenkins_version():
    """Получить версию Jenkins."""
    resp = requests.get(f"{JENKINS_URL}/api/json", auth=(AUTH_USER, AUTH_TOKEN), verify=False)
    resp.raise_for_status()
    jenkins_version = resp.headers.get("X-Jenkins")
    if not jenkins_version:
        # Если нет в заголовке, пытаемся достать из JSON
        data = resp.json()
        jenkins_version = data.get("jenkinsVersion")
    return jenkins_version

def get_jenkins_plugins():
    """Получить список (shortName, version) для установленных плагинов Jenkins."""
    url = f"{JENKINS_URL}/pluginManager/api/json?depth=1"
    resp = requests.get(url, auth=(AUTH_USER, AUTH_TOKEN), verify=False)
    resp.raise_for_status()
    data = resp.json()
    plugins = data.get("plugins", [])
    plugin_list = []
    for p in plugins:
        shortName = p.get("shortName")
        version = p.get("version")
        if shortName and version:
            plugin_list.append((shortName, version))
    return plugin_list

def fetch_cves_by_cpe(cpe_name, max_retries=3, delay=5):
    """
    Запросить уязвимости из NVD по cpeName.
    При ошибках 403/503 делает несколько попыток.
    """
    params = {
        "cpeName": cpe_name,
        "resultsPerPage": 50
    }
    headers = {
        "apiKey": NVD_API_KEY
    }

    for attempt in range(max_retries):
        resp = requests.get(NVD_API_URL, params=params, headers=headers)
        
        if resp.status_code == 403:
            if attempt < max_retries - 1:
                print(f"Got 403 Forbidden with API key. Retrying in {delay} seconds...")
                time.sleep(delay)
                continue
            else:
                print("Got 403 Forbidden after maximum retries. Exiting.")
                sys.exit(1)
        elif resp.status_code == 503:
            if attempt < max_retries - 1:
                print(f"Got 503 Service Unavailable. Retrying in {delay} seconds...")
                time.sleep(delay)
                continue
            else:
                print("Got 503 Service Unavailable after maximum retries. Exiting.")
                sys.exit(1)
        
        resp.raise_for_status()
        data = resp.json()
        return data.get("vulnerabilities", [])

    print("All attempts failed unexpectedly. Exiting.")
    sys.exit(1)

def insert_vulnerabilities(conn, name, version, vulnerabilities):
    """
    Вставить или обновить информацию об уязвимостях в PostgreSQL.

    Если нет уязвимостей:
      - вставляем/обновляем запись с cve_id='NO_VULN'.
    
    Если уязвимости появились:
      - удаляем запись 'NO_VULN' (если была),
      - вставляем все уязвимости с UPSERT.

    Используем ON CONFLICT DO UPDATE для актуализации данных.
    """
    if vulnerabilities:
        # Удаляем запись NO_VULN, если есть
        delete_query = """
        DELETE FROM software_vulnerabilities
        WHERE name = %s AND version = %s AND cve_id = 'NO_VULN';
        """
        with conn.cursor() as cur:
            cur.execute(delete_query, (name, version))
        conn.commit()

        # Вставляем реальные уязвимости
        records = []
        for v in vulnerabilities:
            cve = v.get("cve", {})
            cve_id = cve.get("id")
            descs = cve.get("descriptions", [])
            desc_en = next((d.get("value") for d in descs if d.get("lang") == "en"), "")

            severity = None
            published_date = cve.get("published")
            last_modified = cve.get("lastModified")

            metrics = cve.get("metrics", {})
            cvss_v3 = metrics.get("cvssMetricV31", [])
            if cvss_v3:
                m = cvss_v3[0]
                cvss_data = m.get("cvssData", {})
                severity = cvss_data.get("baseSeverity", None)

            records.append((name, version, cve_id, desc_en, severity, published_date, last_modified, True))

        query = """
        INSERT INTO software_vulnerabilities (name, version, cve_id, description, severity, published_date, last_modified, has_vulnerabilities)
        VALUES %s
        ON CONFLICT (name, version, cve_id) DO UPDATE SET
          description = EXCLUDED.description,
          severity = EXCLUDED.severity,
          published_date = EXCLUDED.published_date,
          last_modified = EXCLUDED.last_modified,
          has_vulnerabilities = EXCLUDED.has_vulnerabilities,
          inserted_at = NOW();
        """
        with conn.cursor() as cur:
            execute_values(cur, query, records)
        conn.commit()

    else:
        # Нет уязвимостей - вставляем/обновляем NO_VULN
        query = """
        INSERT INTO software_vulnerabilities (name, version, cve_id, has_vulnerabilities)
        VALUES (%s, %s, 'NO_VULN', FALSE)
        ON CONFLICT (name, version, cve_id) DO UPDATE SET
          has_vulnerabilities = EXCLUDED.has_vulnerabilities,
          inserted_at = NOW(),
          description = NULL,
          severity = NULL,
          published_date = NULL,
          last_modified = NULL;
        """
        with conn.cursor() as cur:
            cur.execute(query, (name, version))
        conn.commit()

def main():
    # Подключаемся к БД
    conn = psycopg2.connect(
        host=DB_HOST,
        port=DB_PORT,
        dbname=DB_NAME,
        user=DB_USER,
        password=DB_PASSWORD
    )

    jenkins_version = get_jenkins_version()
    if not jenkins_version:
        print("Could not determine Jenkins version.")
        sys.exit(1)

    # Обрабатываем Jenkins Core
    jenkins_cpe = f"cpe:2.3:a:jenkins:jenkins:{jenkins_version}:*:*:*:-:*:*:*"
    print(f"Jenkins version: {jenkins_version}")
    print(f"Jenkins CPE: {jenkins_cpe}")
    jenkins_vulns = fetch_cves_by_cpe(jenkins_cpe)
    insert_vulnerabilities(conn, "jenkins_core", jenkins_version, jenkins_vulns)

    # Обрабатываем плагины
    plugins = get_jenkins_plugins()
    print(f"\nFound {len(plugins)} plugins installed.")

    for shortName, version in plugins:
        plugin_cpe = f"cpe:2.3:a:jenkins:{shortName}:{version}:*:*:*:*:jenkins:*:*"
        print(f"\nPlugin: {shortName}, version: {version}")
        print(f"CPE: {plugin_cpe}")
        plugin_vulns = fetch_cves_by_cpe(plugin_cpe)

        # Добавляем суффикс _plugin для отличия в графиках
        plugin_name = f"{shortName}_plugin"
        insert_vulnerabilities(conn, plugin_name, version, plugin_vulns)

    conn.close()

if __name__ == "__main__":
    main()